The four SIGMA-class corvettes for the Indonesian Navy (TNI-AL) are designed according to the revolutionary
SIGMA-approach from Schelde Naval Shipbuilding. This approach applies modular in many areas, which offers the user great flexibility
at reduced costs.

The corvettes are equipped with a comprehensive combat and communication suit fitted on a spacious platform accommodating
80 persons, a large helicopter deck and a twin-screw diesel propulsion. The superior propulsion and sea keeping capabilities
make the SIGMA class Corvettes perfectly suited for maritime search and patrol operations in the Indonesian territorial waters.
Basic functions are Naval Patrol EEZ, Deterrence, Search And Rescue and ASW.

A helicopter deck for helicopters with a maximum weight of 5 tons, with lashing points and refuelling system
is provided. Heli operations can be performed at day and nightThe vessels are built according to Lloyds Register Class for
unrestricted service and are enhanced by proven naval principles.